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PHENIX muon arm trigger upgrade: RPC for the RPC upgrade group

PHENIX muon arm trigger upgrade: RPC for the RPC upgrade group. PHENIX upgrade meeting 、 理研 １月２１日 Ralf Seidl ( 理研 ). W ボソン生成で（反）クォークの縦偏極を計る. e +. m +. m -. e -. m -. m +. 弱相互作用でのパリティ非保存 左巻き素粒子 と 右巻き反素粒子  陽子の運動方向にスピンが反平行なクォークか平行な反クォークだけを計る W + : u クォーク、 d 反クォーク

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PHENIX muon arm trigger upgrade: RPC for the RPC upgrade group

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  1. PHENIX muon arm trigger upgrade: RPCfor the RPC upgrade group PHENIX upgrade meeting、 理研 １月２１日 Ralf Seidl (理研)

  2. W ボソン生成で（反）クォークの縦偏極を計る e+ m+ m- e- m- m+ 弱相互作用でのパリティ非保存 左巻き素粒子と 右巻き反素粒子 陽子の運動方向にスピンが反平行なクォークか平行な反クォークだけを計る W+: uクォーク、 d反クォーク W-: dクォーク、 u反クォーク PHENIX muon trigger upgrade (I): RPC

  3. ＲＨＩＣで500 GeV,Ｗボソンを計る current trigger (MuID) threshold • 初の500 GeV RHIC run ２００９年: • 加速器の試運転、陽子の偏極はまだ低い • PHENIX　で　～18 pb-1 (novtx)　収集 • 北側と南側のミューオン検出器 (1.2<|h|<2.4) に高運動量ミューオントリガーを建設中 • ミューオンによるWボゾン測定に必要 • 現在のMuTrに高速読み出しトリガー回路（ＪＳＰＳ科研費）: Resistive plate counters （ＮＳＦ）: プロトタイプをテスト, 北側：設置しています 南側：設置中 • 長期の500 GeV run(2011,2012)に向けて ミューオントリガーのコミッショニング通行中 W dominant region 三部さん PYTHIA5.7 PHENIX muon trigger upgrade (I): RPC

  4. PHENIX Muon Trigger Upgrade Project RPC MuID MuID RPC MuTR MuTR μ RPC absorber RPC (完了) provide timing information and rough position information MuID trigger (現在) selecting muon momentum > 2GeV/c MuTR FEE upgrade (完了) fast selection of high-momentum-tracks PHENIX muon trigger upgrade (I): RPC

  5. B 新しいミュオントリガー RPC project RPC timing information rough position information MuTr Level-1 trigger ADC digitized hit signal digitized hit signal digitized hit signal ADC Level-1 trigger board MuTRG project sagitta ADC 三部さん PHENIX muon trigger upgrade (I): RPC

  6. Bunch Crossing time: 106ns Technology Choice and R&D One Arm RPC Station3: ~70m2 RPC Station3 thickness in z: ~12cm 15-30cm available CMS bakelite technology developed for muon trigger applications at the LHC. Korea University is PHENIX collaborator! CMS specs exceed PHENIX specs! PHENIX muon trigger upgrade (I): RPC

  7. Technology Choice and R&D GSU detector construction, RPC performance, Q&A (A,C) CIAE develop detector box, signal plane, support structure (C) UIUC 2-d efficiencies, rate capability, gas mixture (“open” RPC) BNL assembly, Q&A (using prototypes C and D) Colorado test readout electronics on RPC (using prototype C) Nevis develop front end electronics Generation 1-5 GSU prototypes, PKU prototype, open UIUC prototype Prototype A 3 detectors built at GSU with gas gaps from KODEL Prototype B original CMS barrel detector gaps and signal planes Prototype C 3 RPC3A detector modules: full production chain Prototype D 3 half octants of RPCs: full production chain RPC-1 Prototype RPC-1 octant: full production chain, test “split gaps” PHENIX muon trigger upgrade (I): RPC

  8. RPC Detector Production Assembly and Installation Bakelite RPC Detector Parts RPC Detector frames and parts Korea University, Korea RPC gap (CMS Endcap RPC gap vendor) Pan-Pla, Italy Bakelite manufacture (CMS bakelite vendor) RPC factory, BNL, US Assemble & Test RPC modules Assemble & Test RPC half octants gas cell route US Korea Italy BNL CIAE, China RPC module frame and readout strip plane (CIAE has access to CMS frame/readout strip vendors) China Riva, Italy Bakelite cutting (CMS bakelite cutting company) bakelite route • PHENIX, BNL, US • RPC group: • Installation (help from PHENIX technicians) • Commissioning • Operation monitoring • of RPCs Hi-Tech Manufacturing, US RPC half octant frame General Tecnica, Italy Bakelite cleaning (CMS bakelite cleaning company) Nevis Lab. at Columbia University, US Electronics (use CMS RPC discriminator chip) PHENIX muon trigger upgrade (I): RPC

  9. RPC Half Octantの組み立てと RHIC トンネル設置 • ＲＰＣ： • ＣＭＳタイプ • Bakelite (イタリア) Gap(韓国大) Module /Detector(BNL) • 2 gaps /module • 3 modules/ halfoctant • 16 halfoctants / arm PHENIX RPC detector requirement PHENIX muon trigger upgrade (I): RPC

  10. RPC factory + Cosmics test stand Scintiallator Trigger Hodoscope 10 shelves for RPCs up to 640 channels NIM crate with DAQ 3 PHENIX RPC TDCs within crate Scintillator Trigger Hodoscope • establish assembly and Q&A procedures for RPC3 • establish 2-d efficiency measurements as outgoing Q&A • first complete chain of prototype D + PHENIX FEE! PHENIX muon trigger upgrade (I): RPC 10

  11. RPC-3 Detector Assembly at BNL PHENIX muon trigger upgrade (I): RPC PHENIX Muon Trigger Upgrade Status

  12. 宇宙線によるModule QA Event display cosmic ray trigger scintillators RPC readout strip planes • テストベンチで数日間測定 • 検出効率とクラスタサイズのＨＶと敷居値関数を計る • ノイズレートチェック: cosmic ray trajectory Hz/cm2 PHENIX muon trigger upgrade (I): RPC

  13. ＲＰＣの検出効率とクラスタサイズ　 • 9.5 kV から９５％以上の検出効率を観測 • クラスタサイズ１－２ストリプ • 通常運転: 9.5 kV と140 mV • GasMixture: 95% C2H2F4 + 4.5% i-C4H10 + 0.5% SF6 PHENIX muon trigger upgrade (I): RPC

  14. 2009年 full half-octant Prototype ミュオントラックと相関のあるヒット • PHENIX 実験の２００９年ラン：２Halfoctant RPCプロトタイプのテスト • √ｓ＝５００ＧｅＶ　ｐｐ衝突 • Timing resolution ３－４ ns （現在のトリガで２０ns幅を使う予定） PHENIX muon trigger upgrade (I): RPC

  15. The Half-octant installation dance* • 1st Half octant East • 3rd Half octant East • 7th Half octant East • Before 5 and 6 *Choreography by Don Lynch and his Techs PHENIX muon trigger upgrade (I): RPC

  16. RPC-3 half octant frame at UIUC RPC3 設置状況 • RPC-3 North: 2009年のシャットダウン • HV, LV ケーブルとpower supplies , TDCs ２０１０年ランの期間中設置 • RPC-3 South：2010年のシャットダウン • modules とhalf octant組み立てとＱＡ完了 • 設置完了 PHENIX muon trigger upgrade (I): RPC

  17. ＲＰＣインストレーション 北側：完了2009年 南側：完了2010年 PHENIX muon trigger upgrade (I): RPC

  18. ２０１０北側宇宙線解析 ヒット分布 HO1 HO2 HO4 • ＰＨＥＮＩＸ実験の北側に設置したＲＰＣ検出器宇宙線でテスト • ＨＶを印加できたＨＯは妥当ヒット分布を示している • ノイスレベル（青線）：十分低い • グレイ表面：ガス配管が間に合わなかったため：ＨＶoff HO13 ストリップ番号 PHENIX muon trigger upgrade (I): RPC

  19. 2011年の宇宙線onlineデータ • 一月から全RPC3に正しいガス　 • 電気圧operatingに上がって • ノイスとデッドチャンネル～５％ • 最初N-S timing correlation見ました PHENIX muon trigger upgrade (I): RPC

  20. MuonTrigger commissioning • まだ1週間位宇宙線データ • RPC＋ムオントラック効率解析 • MuTrig ＋LL1 回路 • MuTrig＋RPCLL1回路 • 最初のpp-collision: • 全検出器timing PHENIX muon trigger upgrade (I): RPC

  21. Stainless steel (S310) Absorber • Wm解析の一番高いＢＧ： • 低運度量Ｋ+/- (1-2GeV，断面積大きい) • ＭｕＴｒの中に崩壊高いＰｔにreconstructされる • 現在のマテリアルで１０００分の１ • ３５ｃｍ鉄アブソーバで更にの～１０分の１　 Run 9 geometry Run 11 geometry (new absorber) PHENIX muon trigger upgrade (I): RPC

  22. Absorber installation MuID RPC MuTR μ RPC absorber インストレーション中 完了 PHENIX muon trigger upgrade (I): RPC

  23. まとめ ＰＨＥＮＩＸのＷスピン物理のため新しいミュオントリガーを開発 ＲＰＣと現在ＭｕＴｒの早い読み出し回路 ＲＰＣ３設置：北側２００９年完了、南側九月完了予定 Ｗオフライン解析：Ｓ／Ｎ鉄アブソーバが必要 ３５ｃｍアブソーバ：完了 今の５００ＧｅＶラン（２０１１年）ＲＰＣはミューオントリガーに組み込み予定 PHENIX muon trigger upgrade (I): RPC

  24. Large effort • Gap Production at KODEL • KyongSei Lee, Byungsik Hong, • Module and readout strip production • Xiaomei Li, Shouyang Hu • Detector R&D: • Beau Meredith, Cameron McKinney, Martin Leitgab, Scott Wolin, George Deinlein, Alex Burnap, Jason Strack, Nick Mucia, Zarah Ahmad, David Northacker, Matthias Grosse Perdekamp, Xiaochun He, Jun Jin • Factory (Assembly and QA): • Young Jin Kim, Kwangbok Lee, Byungil Kim, Ruizhe Yang, IhnJea Choi, Anselm Vossen, Brett Fadem, William Powell, Rusty Towell, Keller Andrews, Doug Coley, Kyle Gainey, Dillon Thomas, Ryan Wright, David Broxmeyer, Caitlin Harper, Tally Sodre, Kirk Drummond, Ethan Allen, Langson Parks, David Kleinjan, Richard Hollis • Half-octant assembly and Q&A: • Martin Leitgab, Alex Burnap, Cameron McKinny, George Deinlein, Justin Ide, Zarah Ahmad, • FEE boards, electronics: • Chi, Jami Nagle, Alex Linden-Levy, Daniel Rehn • Prototype D operation: • Ruizhe Yang, Anselm Vossen, Young Kin Kim, RS • Cosmic Ray W background analysis • Jun Jin, Murad Sarsour, Xiaochun He • Reconstruction software and W simulations: • Richard Hollis, Beau Meredith, RS • RPC design • Larry Bartouszek, Austin Basye, Tyler Natoli, Anselm Vossen, RS • Installation, Services: • Don Lynch, Carter Biggs, Rob Pisani, Frank Toldo, Richie Ruggiero, Kyle , Mike Rau PHENIX muon trigger upgrade (I): RPC

  25. Beam use proposal for W mu measurements in run11 • Single muons from Rhicbos fully simulated and reconstructed, • Errors scaled by • 1/Polarization • 1+Bg/Signal • S/BG ratio uncertainty of 2 added as systematic error (shown on nonzero parametrization as otherwise no effect) PHENIX muon trigger upgrade (I): RPC

  26. W-Physics:Some Experimental Issues Online  Trigger Issues (A) Trigger at 9.6 MHz p-p collisions: rejection > 10000, muID ~ 200-500 Challenges  reject muons from hadron decay  muTrig + RPCs  reject beam backgrounds  RPCs Offline  Analysis Issues (B) Assign events to W- or W+ asymmetry: ALμ- and ALμ+ Challenge  Tracking: charge separation for pT > 20 GeV  muTr + alignment, re-cap, n-absorbers Link W-events to correct bunch crossing (beam polarization!) Challenge  Timing better than 100 ns  RPCs Eliminate backgrounds in inclusive lepton data sample Challenges  Physics backgrounds: charm, bottom, Z0 Tracks with falsely reconstructed high pT  Steel-abs. Cosmic ray background  RPCs PHENIX muon trigger upgrade (I): RPC

  27. Technology Choice and R&D Plan: Adapt CMS technology so that CMS R&D results. For example, we insist on identical materials and construction procedures to make sure the radiation hardness studies are still valid. Goals: (I) analyze and understand CMS bakelite RPC technology (II) develop PHENIX front end electronics for RPCs (III) develop and optimize detector production and assembly (IV) grow RPC expertise necessary to deploy and operate the detectors successfully. PHENIX muon trigger upgrade (I): RPC

  28. Installation of RPC 3 N (Gap 5) • Space is extremely limited • Installation via the tunnel • Gap is ~10” , half-octants ~5” thick • Several parts in the way: • Cable trays (will be moved) • Uneven floor (will be grouted) • Crystal palace/vapor barrier (new barrier needed) • Installation of RPC3 South (2010) similar, but also gas lines which need to be moved PHENIX muon trigger upgrade (I): RPC

  29. Stainless steel (S310) Absorber Pythia 6.4 • Wm解析の一番高いＢＧ： • 低運度量Ｋ+/- (1-2GeV，断面積高い) • ＭｕＴｒの中に崩壊高いＰｔ再構成される • 現在マテリアルで１０００分 • ３５ｃｍ鉄アブソーバで他の～１０分　 PHENIX muon trigger upgrade (I): RPC

  30. MC RPC hit curves • Blue projected track in half octant • Red: projected track in half octant and RPC hit in half octant • Not full efficiency at low eta (large angles) as RPC3 does not reach out to 37 degrees 0 1 2 3 7 4 8 11 12 15 PHENIX muon trigger upgrade (I): RPC

  31. MC hit efficiencies 0 1 2 3 • MC efficiencies close to 100% , • Slightly dropping at high eta (small angles) • Still 80% efficient in lowest eta bin 7 4 8 11 12 15 PHENIX muon trigger upgrade (I): RPC

  32. Decay kinematics due to helicity conservation W+ W- PHENIX muon trigger upgrade (I): RPC

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